mojo/examples/keyboard/keys.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_EXAMPLES_KEYBOARD_KEYS_H_
   6 #define MOJO_EXAMPLES_KEYBOARD_KEYS_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11
  12 namespace mojo {
  13 namespace examples {
  14
  15 enum SpecialKey {
  16   SPECIAL_KEY_SHIFT = -1,
  17   SPECIAL_KEY_NUMERIC = -2,
  18   SPECIAL_KEY_ALPHA = -3,
  19 };
  20
  21 struct Key {
  22   int keyboard_code() const {
  23     // Handling of keycodes differs between in windows and others.
  24 #if defined(OS_WIN)
  25     return generated_code ? generated_code : display_code;
  26 #else
  27     return display_code;
  28 #endif
  29   }
  30
  31   // Code used to get the value to display in the UI. This is either a
  32   // KeyboardCode or a SpecialKey.
  33   int display_code;
  34
  35   // How much space (as a percentage) the key is to take up.
  36   float size;
  37
  38   // Any ui::EventFlags that are required to produce the key.
  39   int event_flags;
  40
  41   // If non-zero KeyboardCode to generate. If 0 use the |display_code|.
  42   int generated_code;
  43 };
  44
  45 struct Row {
  46   float padding;
  47   const Key* keys;
  48   size_t num_keys;
  49 };
  50
  51 // Returns the rows for a qwerty style keyboard. The returned values are owned
  52 // by this object and should not be deleted.
  53 std::vector<const Row*> GetQWERTYRows();
  54
  55 // Returns the rows for a numeric keyboard. The returned values are owned
  56 // by this object and should not be deleted.
  57 std::vector<const Row*> GetNumericRows();
  58
  59 }  // namespace examples
  60 }  // namespace mojo
  61
  62 #endif  // MOJO_EXAMPLES_KEYBOARD_KEYS_H_